Stuffing-axle.



E. HARTUNG.

STUFHNG- AXLE.

APPLICATION IILBD APB.19, 1909.

966,331 Patented Aug. 2, 1910.

1": Home): PETERS cm, WASHINGTON, D. c.

TQE.

EMIL HARTUNG, OF MTTLHAUSEN, GERMANY.

s'rUrrrne-AXLE.

Specification of Letters Patent.

Patented Aug. 2, 1919.

Application filed April 19, 1909.. Serial N0. 490,904.

To all whom it may concern:

Be it known that I, EMIL HARTUNG, manufacturer, a subject of the King of Prussia, German Emperor, residing at Miilhausen, Kingdom of Prussia, Germany, have invented certain new and useful Improvements in Stufling-Axles, of which the following is a specification.

The present invention sets forth a new and absolutely safe method of connecting the hub and the spindle of vehicles of all kinds, particularly of such as are sub ected to heavy loads and much olting, also however of light wagons and carriages. It assures a permanent connection between the hub and the spindle, is of easy access and simple adjustment even for the most inexperienced persons, and furnishes continuous lubrication, at the same time doing away with the necessity of a rear washer on the axle.

The invention herein described resides primarily in the production of an iron cap, which is applied to the axle body or axle proper in the capacity of a rear cap, this being the one and only connecting devlce between the axle and the hub, taking the place of the washers, nuts, screw thread rings, etc, required at least in pairs in other devices of this nature, and serving at the same time as a dust proof oil chamber. It is fastened by means of an ordinary cotter pin which is passed through the axle, so that the operation of connecting as well as disconnecting is a. simple one.

The preferred embodiment of the invention is illustrated in the accompanying drawing, wherein:

Figure 1 is a longitudinal sectional view. Fig. 2 is an end elevation. Fig. 3 is a transverse section on the line AB. Figs. at and 5 are respectively sectional and side elevational views of the cap.

The arrangement is as follows: The axlebox Z), fitted in the usual manner upon the tapered spindle portion (Z of the axle e, is provided with longitudinal ribs 6 which adjust the axle-box to the bore of the hub a and result in the formation of an air chamber 09, the presence of this air space or chamber preventing the conveyance of heat from the hub to the axle-box and spindle. The free end cZ of the spindle terminates short of the closed end 0 of the axle-box, thereby providing the oil chamber is. At their inner ends the axle-box and hub are provided respectively with disk-like extensions 6 anda which are of the same diameter and are arranged incontact with each other. Against the disk is in turn arranged a stepped or undercut ring it fastened to the disks Z2 and a by means of a series of threaded bolts 71.

The axle body 6 is shown as polygonal in cross section, in the present instance rectangular, and upon it is fitted an iron cap f having a correspondingly shaped channel, as will be understood. To retain the cap in place upon the axle body, and to permit a limited adjustment thereof, there is formed in the innermost or narrowest step of said cap a plurality of airs of alining perforations located at different distances from the outer edge of said step, through which pairs of perforations and through a single perforation formed in the axle body a cotter pin g is arranged to pass. The above mentioned perforations in the cap are shown clearly in Figs. 1 and 5. The outermost or widest step f of the cap is fitted in the under-cut or stepped portion of the ring it which latter thus surrounds said step so that the steps f and 71 overlap each other. This cap therefore serves as the sole means of connection between the axle body and the hub, and since said cap is, as stated, capable of a slight adjustment upon the axle, such adjustment will have the effect of adjusting the wheel and hub upon the spindle, thereby rendering it possible to compensate for wear. Between the steps or flanges it and f is interposed an annular washer 3 formed of paper, leather or felt. This washer, which is preferably saturated with oil, serves to reduce the friction at such point and also has the effect of tightening the joint between the cap and hub.

By reason of the construction above described, it will be apparent that the cap will effectually retain the hub and wheel in position upon the spindle, and will also prevent the escape of the lubricant beyond said spindle, that any adjustment of the cap will effect a corresponding adjustment of the hub and wheel, and that the removal of the cotter pin, which may be readily accomplished, as will be understood, will permit the cap, and with it the axle-box, hub and wheel to be removed from the spindle. It will also be seen that the presence of the air space or chamber as prevents the axle-box and spindle from becoming heated. Finally,

it may be stated that the construction described obviates the necessity for the rigid rear washer, which, as experience has proved, is the principal cause of broken axles.

What is claimed is:

l. The combination, With an axle body and its spindle, of an axle-box fitted upon the spindle and provided with a disk, a hub fitted upon the axle-box and provided with a disk arranged in contact with the axle-box disk, a ring secured to said disks, and a cap secured to the axle body, said ring and cap having overlapping steps.

2. The co1nbination,with an axle body and its spindle, of an axle-box fitted upon the spindle and provided witha disk, a hub between said steps.

In testimony whereof I havehereunto set my hand in presence of two subscribing Witnesses.

EMIL HARTUNG. Witnesses GUSTAV LAUTER, J12, OSKAR HEIMANN. 

